Pentium 4 HyperTheading support

  • Thread starter Thread starter Steven Jones
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Steven Jones

Hi all,

quick question about Pentium 4 HyperTheading support in Windows 2000.

1. will support be added and 2. when?

According to Microsoft they plan to provide support for Windows 2000 until
2006-7.

So it makes sence to attemt to prove HyperTheading support.

any comments?

Steven.
 
Steven Jones said:
Hi all,

quick question about Pentium 4 HyperTheading support in Windows 2000.

1. will support be added and 2. when?

According to Microsoft they plan to provide support for Windows 2000 until
2006-7.

So it makes sence to attemt to prove HyperTheading support.

any comments?
Click to expand...

It already is supported in Win2K, although not officially and in a
limited manner. Win2K cannot distinguish between physical and
logical processors, XP can. So the net effect in 2K is that each
of the two threads runs 50% of a single CPU -- no real gain and
in many cases a degradation in performance.

So far, the speed benefits of HT are vastly overrated. Even in
OS's that fully support it such as XP, the benchmarks I've seen
are disappointing. E.g. in Photoshop 7, only a few specific filters
use HT while most do not.

As for MS adding full support in 2K, I wouldn't count on it. HT
is one of the few substantial(?) selling points for WinXP.

Rick
 
Hello,

If I'm not mistaken it was added with Service Pack 4

--
--Jonathan Maltz [Microsoft MVP - Windows Server]
http://www.imbored.biz - A Windows Server 2003 visual, step-by-step
tutorial site :-)
Only reply by newsgroup. If I see an email I didn't ask for, it will be
deleted without reading.
 
According to Intel's web site, XP Home/Pro versoins suport Hyper-Threading
and Windows 2000 does not suport Hyper-Threading.

I searched Microsoft's Knowledge Base on whether Windows 2000 supports and
uses Hyper-Threading and there is no mention of it.

Jonathan Maltz said:
Hello,

If I'm not mistaken it was added with Service Pack 4

--
--Jonathan Maltz [Microsoft MVP - Windows Server]
http://www.imbored.biz - A Windows Server 2003 visual, step-by-step
tutorial site :-)
Only reply by newsgroup. If I see an email I didn't ask for, it will be
deleted without reading.


Steven Jones said:
Hi all,

quick question about Pentium 4 HyperTheading support in Windows 2000.

1. will support be added and 2. when?

According to Microsoft they plan to provide support for Windows 2000 until
2006-7.

So it makes sence to attemt to prove HyperTheading support.

any comments?

Steven.
Click to expand...
Click to expand...
 
"Windows 2000 Server does not distinguish between physical and logical
processors on systems enabled with Hyper-Threading Technology; Windows 2000
simply fills out the license limit using the first processors counted by the
BIOS"

So Rick was correct, it doesn't distinguish.
http://www.microsoft.com/windows2000/server/evaluation/performance/reports/hyperthread.asp

--
--Jonathan Maltz [Microsoft MVP - Windows Server]
http://www.imbored.biz - A Windows Server 2003 visual, step-by-step
tutorial site :-)
Only reply by newsgroup. If I see an email I didn't ask for, it will be
deleted without reading.


Mark said:
According to Intel's web site, XP Home/Pro versoins suport Hyper-Threading
and Windows 2000 does not suport Hyper-Threading.

I searched Microsoft's Knowledge Base on whether Windows 2000 supports and
uses Hyper-Threading and there is no mention of it.

Jonathan Maltz said:
Hello,

If I'm not mistaken it was added with Service Pack 4

--
--Jonathan Maltz [Microsoft MVP - Windows Server]
http://www.imbored.biz - A Windows Server 2003 visual, step-by-step
tutorial site :-)
Only reply by newsgroup. If I see an email I didn't ask for, it will be
deleted without reading.


Steven Jones said:
Hi all,

quick question about Pentium 4 HyperTheading support in Windows 2000.

1. will support be added and 2. when?

According to Microsoft they plan to provide support for Windows 2000 until
2006-7.

So it makes sence to attemt to prove HyperTheading support.

any comments?

Steven.
Click to expand...
Click to expand...
Click to expand...
 
so anyone know if MS will address this issue at somepoint or do we just put
up with it?
 
Steven Jones said:
so anyone know if MS will address this issue at somepoint or do we just put
up with it?
Click to expand...

Address what issue? Put up with what? If you want full HT support,
upgrade to XP.

Rick
 
Steven Jones wrote in
so anyone know if MS will address this issue at somepoint or do we
just put up with it?
Click to expand...

They have. "Upgrade to XP"
Not that I like it but can you seriously think MS is going to heavily
overhaul W2K to add HT saupport while they try to sell you XP and 2003?
Get real.
 
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